This is an upgrade to the base audio for vehicles sold outside of the US (which don't even get tweeters). Only the 2010 3-series base models got this base audio. We have HiFi upgrade standard in the US and H/K is another step up.

That's right... I don't really understand why those settings are not the same everywhere...even xenons..a $900 difference? Please do it! Retrofit is a nightmare...